Multi-section continuous tea baking machine and control method thereof

Abstract

The invention relates to the technical field of tea leaf baking, in particular to a multi-section continuous tea leaf baking machine and a control method thereof.The multi-section continuous tea leaf baking machine comprises a baking oven, the interior of the baking oven is divided into a preheating cavity and a baking cavity, the preheating cavity and the baking cavity are communicated through a ventilation hole, and a heat conveying mechanism is arranged at the bottom of the baking cavity; an upper conveying belt and a lower conveying belt are rotationally mounted in the preheating cavity and the baking cavity respectively; the tea baking device has the beneficial effects that the preheating cavity and the baking cavity which communicate with each other are formed in the baking oven, the heat conveying mechanism is arranged at the bottom of the baking cavity, when tea leaves pass through the preheating cavity, the tea leaves can be preheated at a low temperature and then enter the baking cavity to be baked, and piled tea leaves can be scattered through the stirring mechanism during preheating; a gap is formed between every two pieces of tea leaves, so that all-directional baking is facilitated after the tea leaves enter the baking cavity, the tea leaves can be uniformly heated, and the color of the baked tea leaves can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tea roasting, and in particular to a multi-stage continuous tea roasting machine and a control method thereof. Background Art

[0002] Baking is an important process in making various types of tea. It is closely related to the quality of tea and is one of the most important links in the tea processing process. In addition to removing moisture from the tea to make it dry enough for storage for long-term drinking, the tea baking process can also further form the unique color, aroma, taste and shape of the tea on the basis of the previous processes. The baking of tea is mainly completed by a tea baking machine.

[0003] When traditional tea roasting machines are used to roast tea, the tea leaves are directly added into the roasting machine. If the tea leaves are clumped together, after the outer tea leaves are dried, the inner tea leaves have not yet been exposed to the heat. This will cause uneven heating of the tea leaves and affect the color of the finished product. In addition, existing tea roasting machines require manual assistance in loading and unloading tea leaves, have a low degree of automation, and cannot achieve continuous production.

[0004] Therefore, a multi-stage continuous tea roasting machine and a control method thereof are needed to solve the above problems. Summary of the invention

[0005] In order to solve the above problem, that is, to solve the problem of uneven heating and low automation in the existing tea roasting machine, the present invention provides a multi-stage continuous tea roasting machine and a control method thereof.

[0006] The baking pan of claim 1, wherein the baking pan is provided with a plurality of baking trays, the plurality of baking trays having a plurality of baking trays and a plurality of baking trays having a plurality of baking trays and a plurality of baking trays having a plurality of baking trays. The feeding belt, the lower conveyor belt, the blocking mechanism and the feeding plate are connected; by arranging a connected preheating chamber and a baking chamber inside the baking box, and arranging the heat feeding mechanism at the bottom of the baking chamber, when the tea leaves pass through the preheating chamber, they can be preheated at a low temperature first, and then enter the baking chamber for baking. During preheating, the piled tea leaves can be dispersed by the stirring mechanism to form gaps between each piece of tea leaves, which is convenient for all-round baking after entering the baking chamber, so that the tea leaves can be heated evenly and the color of the baked tea leaves can be guaranteed; by arranging a top plate on the reciprocating stirring mechanism through a stepping mechanism, and arranging a trigger button at one end of the preheating chamber, the top plate can be driven with the operation of the stirring mechanism. After the stirring mechanism runs back and forth for multiple times, the top plate will start the upper conveyor belt, the lower conveyor belt, the blocking mechanism and the feeding plate only when it can abut against the trigger button, so as to control the time when the tea leaves are in the preheating chamber and the baking chamber.

[0007] The above-mentioned multi-stage continuous tea roasting machine, the heat supply mechanism includes an air inlet duct, the air inlet duct is fixedly installed in the middle position of the bottom of the baking box, an air supply motor is fixedly installed inside the air inlet duct through a mounting rod, and an exhaust fan blade is coaxially fixedly installed on the output shaft of the air supply motor, a heating chamber is opened in the bottom wall of the baking box, an electric heating wire is installed inside the heating chamber, the bottom of the heating chamber is connected with the top end of the air inlet duct, the top of the heating chamber is connected with the bottom of the baking chamber through an air inlet hole, and an exhaust hole is penetrated through the top wall of the baking box; the exhaust fan blade draws external airflow into the heating chamber for heating, the heated airflow enters the baking chamber through the air inlet hole to bake the preheated tea leaves, the airflow in the baking chamber then enters the preheating chamber to preheat the tea leaves, and finally flows out from the exhaust hole.

[0008] In the above-mentioned multi-stage continuous tea roasting machine, upper transmission rollers are rotatably installed at positions near both ends of the preheating chamber, and the two upper transmission rollers are connected by transmission through the upper conveyor belt; lower transmission rollers are rotatably installed at positions near both ends of the baking chamber, and the two lower transmission rollers are connected by transmission through the lower conveyor belt; a first motor and a second motor are fixedly installed on the side wall of the baking box, and the output shafts of the first motor and the second motor are coaxially fixedly connected to one of the upper transmission rollers and one of the lower transmission rollers respectively, and the first motor and the second motor are both connected to the trigger button; when the abutting plate abuts the trigger button, the first motor and the second motor will run simultaneously to drive the upper conveyor belt and the lower conveyor belt to run.

[0009] The above-mentioned multi-stage continuous tea roasting machine, one end of the baking box is a transparent end, and the blocking mechanism includes an upper material transfer door and a lower material transfer door, the top of the upper material transfer door is hinged to the top of the transparent end by a hinge shaft, and the bottom of the lower material transfer door is hinged to the bottom of the transparent end by a hinge shaft; an upper storage chamber is opened near the bottom of the upper material transfer door, a first torsion spring shaft is rotatably installed inside the upper storage chamber, and a lower storage chamber is opened near the top of the lower material transfer door, and a second torsion spring shaft is rotatably installed inside the lower storage chamber, the bottom of the upper storage chamber and the top of the lower storage chamber are both connected to the outside through a first through-hole, and a connecting belt is wound around the first torsion spring shaft and the second torsion spring shaft, and the connecting belts on the first torsion spring shaft and the second torsion spring shaft are connected through the first through-hole; a bottom storage chamber is opened near the middle of the lower material transfer door, A third torsion spring shaft is rotatably installed inside the bottom storage chamber, and the third torsion spring shaft is wound on a guide belt, and the bottom storage chamber is connected to the baking chamber through a second through-hole, and a fixing rod is fixedly installed inside the baking chamber, and one end of the guide belt is connected to the fixing rod through the second through-hole; a first rotating seat is rotatably installed on the side walls of the baking box and the upper transfer door, and the two first rotating seats are connected by a first electric telescopic rod, and the first electric telescopic rod is connected to the trigger button; by setting an upper transfer door and a lower transfer door, after the trigger button is triggered, the first electric telescopic rod is extended, and the upper transfer door drives the lower transfer door to rotate, so that the tea leaves falling from the upper conveyor belt can slide onto the lower conveyor belt through the inner surfaces of the upper transfer door and the lower transfer door, and the connecting belt can not only connect the upper transfer door and the lower transfer door, but also prevent the tea leaves from falling, wherein the guide belt can make the tea leaves fall accurately on the lower conveyor belt.

[0010] The above-mentioned multi-stage continuous tea roasting machine, the stirring mechanism includes a slide plate, the upper surface of the slide plate is fixedly installed with an embossed plate, the lower surface of the top wall of the baking box is provided with an embossed groove, the embossed plate slides in the embossed groove, the lower surface of the top wall of the baking box is provided with a reciprocating groove, the reciprocating screw is rotatably installed in the reciprocating groove, one end of the reciprocating screw is coaxially fixedly installed with a driven bevel gear, the top of the baking box is fixedly installed with a fourth motor, the output shaft of the fourth motor is coaxially fixedly installed with an active bevel gear, the active bevel gear The gear is meshed and connected with the driven bevel gear, an extension rod is fixedly installed on the top of the slide board, a guide rotating block is rotatably installed on the top of the extension rod, the guide rotating block extends into the groove of the reciprocating screw, a toothed disc is rotatably installed on the bottom of the slide board, a stirring rod is fixedly installed on the bottom of the toothed disc, a driving toothed plate is fixedly installed on the side wall of the preheating chamber, and the toothed disc is meshed and connected with the driving toothed plate; when the reciprocating screw drives the slide board to move, the toothed disc meshes with the driving toothed plate, so that the toothed disc drives the stirring rod to rotate, thereby stirring the tea leaves on the upper conveyor belt.

[0011] The above-mentioned multi-stage continuous tea roasting machine, the stepping mechanism includes a plate collecting cavity, the plate collecting cavity is opened inside the slide plate, the abutting plate slides inside the plate collecting cavity, a driving gear is rotatably installed inside the slide plate, part of the driving gear abuts against one side of the abutting plate, and a ball is arranged on the side of the plate collecting cavity away from the driving gear, and a plurality of retracted cavities are horizontally and equidistantly opened on the inner surface of the baking cavity, a helical tooth plate is slidably installed inside the retracted cavity through a abutting spring, the driving gear is meshed with the helical tooth plate, a control rope is fixedly installed at one end of the helical tooth plate located in the retracted cavity, and the other end of the control rope extends to the outside of the baking box; when the slide plate moves, the driving gear will push the helical tooth plate into the retracted cavity, and the driving gear will not rotate. When the slide plate is reset, the driving gear will be toggled by the helical tooth plate to drive the abutting plate to slide outward, wherein the contact amount between the helical tooth plate and the driving gear can be controlled by the control rope, thereby controlling the number of back and forth movements of the stirring mechanism to abut the trigger button.

[0012] In the above-mentioned multi-stage continuous tea roasting machine, a perforation of a resist plate is formed through one end of the preheating chamber away from the opening end, the perforation of the resist plate and the resist top plate are located on the same horizontal plane, a sleeve is fixedly installed at one end of the baking box, a sleeve plate is slidably installed inside the sleeve, the trigger button is installed on the sleeve plate, the trigger button and the resist top plate are located on the same horizontal plane, a third motor is fixedly installed on one side of the baking box, a reset wheel is coaxially fixedly installed on the output shaft of the third motor, part of the reset wheel extends into the perforation of the resist plate, and the third motor is connected to the trigger button; the distance between the resist top plate and the trigger button can be controlled by moving the sleeve plate, and after the resist top plate resists the trigger button, the third motor rotates rapidly, and the resist top plate is retracted into the plate receiving cavity through the reset wheel to start the next cycle.

[0013] In the above-mentioned multi-stage continuous tea roasting machine, both ends of the roasting chamber are open ends, the top of the roasting chamber away from the lower material transfer door is hinged with a discharge door through a hinge shaft, and the bottoms of the roasting box and the supply box are fixedly installed with supporting legs.

[0014] The above-mentioned multi-stage continuous tea roasting machine, the feeding pipe is connected to the top of one side of the feeding box, the top of the feeding box is hinged with a feeding cover plate through a hinge shaft, the pressure sensing plate is arranged at the bottom of the feeding cover plate, the side of the feeding box away from the feeding pipe is fixedly installed with a fourth electric telescopic rod, the telescopic end of the fourth electric telescopic rod is fixedly connected to the pushing plate, the bottom of the feeding box is fixedly installed with a third electric telescopic rod, the telescopic end of the third electric telescopic rod is fixedly connected to the feeding plate, the third electric telescopic rod is connected to the trigger button, and the fourth electric telescopic rod is connected to the pressure sensing plate.

[0015] A control method for a multi-stage continuous tea roasting machine comprises the following steps: Step A: Heat supply: Turn on the air supply motor and the heating wire to supply heat; Step B: Adding tea: After the trigger button is triggered, the feeding plate pushes the tea leaves up, and after the pressure sensing plate senses, the third electric telescopic rod stops, and the pushing plate pushes the tea leaves onto the upper conveyor belt; Step C: Preheating: The stirring mechanism is in operation, and the stirring rod spreads and stirs the tea leaves for preheating; Step D: Transferring materials: After the stirring mechanism runs several times back and forth, the stepping mechanism drives the abutting plate to abut the trigger button, and the tea leaves on the upper conveyor belt are transported to the lower conveyor belt for roasting; Step E: Discharging: After the trigger button is triggered, the lower conveyor belt delivers the roasted tea leaves through the discharging door; Step F: loop: Step A is always on, and step BE is looped, so that tea leaves can be roasted in multiple stages continuously.

[0016] The beneficial effects of the present invention are: 1. The present invention arranges a interconnected preheating chamber and a baking chamber inside the baking box, and arranges a heat supply mechanism at the bottom of the baking chamber. When the tea leaves pass through the preheating chamber, they can be preheated at a low temperature first, and then enter the baking chamber for baking. During preheating, the piled tea leaves can be stirred by the stirring mechanism to form gaps between each piece of tea leaves, which is convenient for all-round baking after entering the baking chamber, so that the tea leaves can be heated evenly and the color of the tea leaves after baking can be guaranteed.

[0017] 2. The present invention arranges a push plate on the reciprocating stirring mechanism through a stepping mechanism, and arranges a trigger button at one end of the preheating chamber, so that the push plate can be driven as the stirring mechanism runs. After the stirring mechanism runs back and forth for multiple times, the push plate will start the upper conveyor belt, the lower conveyor belt, the blocking mechanism and the feeding plate only when it can push against the trigger button, which is convenient for controlling the time that the tea leaves are in the preheating chamber and the baking chamber.

[0018] 3. The present invention sets an upper material transfer door and a lower material transfer door. After the trigger button is triggered, the first electric telescopic rod extends, and the upper material transfer door drives the lower material transfer door to rotate, so that the tea leaves falling from the upper conveyor belt can slide onto the lower conveyor belt through the inner surfaces of the upper material transfer door and the lower material transfer door. The connecting belt can not only connect the upper material transfer door and the lower material transfer door, but also prevent the tea leaves from falling. The guide belt can make the tea leaves fall accurately onto the lower conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the heat delivery mechanism structure of the present invention; Figure 4 It is a schematic diagram of the structure of the embossed plate of the present invention; Figure 5 This is a schematic diagram of the driving gear structure of the present invention; Figure 6 It is a schematic diagram of the structure of the convex groove of the present invention; Figure 7 It is a schematic diagram of the sleeve structure of the present invention; Figure 8 For the present invention Figure 2 The enlarged structural diagram at A in the middle; Fig. 9 For the present invention Figure 2 The enlarged structural diagram at B in the middle; Fig.10 For the present invention Figure 2 The enlarged structural diagram at C in the middle; Fig.11It is a schematic diagram of the reciprocating screw structure of the present invention.

[0020] In the figure: 1. Baking box; 2. Preheating chamber; 3. Baking chamber; 4. Ventilation hole; 5. Upper conveyor belt; 6. Lower conveyor belt; 7. Feeding pipe; 8. Feeding box; 9. Pushing plate; 10. Feeding plate; 11. Pressure sensing plate; 12. Reciprocating screw; 13. Top plate; 14. Trigger button; 15. Air inlet pipe; 16. Mounting rod; 17. Air supply motor; 18. Exhaust fan blade; 19. Heating chamber; 20. Heating wire; 21. Air inlet hole; 22. Exhaust hole; 23. Upper transmission roller; 24. Lower transmission roller; 25. First motor; 26. Second motor; 27. Upper transfer door; 28. Lower transfer door; 29. ​​Upper storage chamber; 30. First torsion spring shaft; 31. Lower storage chamber; 32. Second torsion spring shaft; 33. First perforation; 34. Connecting belt; 35. First rotating seat; 36. First An electric telescopic rod; 37, bottom storage chamber; 38, third torsion spring shaft; 39, material guide belt; 40, second perforation; 41, fixed rod; 42, slide plate; 43, embossed plate; 44, embossed groove; 45, reciprocating groove; 46, driven bevel gear; 47, fourth motor; 48, active bevel gear; 49, extension rod; 50, guide rotating block; 51, toothed disc; 52, stirring rod; 53, driving toothed plate; 54, plate receiving chamber; 55, driving gear; 56, ball bearing; 57, retracting chamber; 58, top spring; 59, oblique toothed plate; 60, control rope; 61, perforation of the plate; 62, sleeve; 63, sleeve plate; 64, third motor; 65, reset wheel; 66, discharge door; 67, support leg; 68, feeding cover plate; 69, fourth electric telescopic rod; 70, third electric telescopic rod. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] like Figure 1-2As shown, the embodiment of the present invention discloses a multi-stage continuous tea roasting machine and a control method thereof, comprising a roasting box 1, the interior of the roasting box 1 is divided into a preheating chamber 2 and a roasting chamber 3, the preheating chamber 2 and the roasting chamber 3 are connected through a vent hole 4, a heat supply mechanism is arranged at the bottom of the roasting chamber 3, an upper conveyor belt 5 and a lower conveyor belt 6 are rotatably installed in the preheating chamber 2 and the roasting chamber 3, one end of the preheating chamber 2 and the roasting chamber 3 are connected through a blocking mechanism; one end of the preheating chamber 2 is connected through a feeding pipe 7 There is a feeding box 8, a pushing plate 9 is slidably provided on the side of the feeding box 8 away from the baking box 1, a feeding plate 10 is slidably installed inside the feeding box 8, a pressure sensing plate 11 is provided on the top of the feeding box 8, and the pressure sensing plate 11 is connected to the pushing plate 9 and the feeding plate 10; a stirring mechanism is provided on the top of the preheating chamber 2 through a reciprocating screw 12, and a top plate 13 is slidably provided on the stirring mechanism through a stepping mechanism, and a trigger button 14 is provided at one end of the preheating chamber 2, and the trigger button 14 is connected to the upper conveyor belt 5 , lower conveyor belt 6, blocking mechanism and feeding plate 10 are connected; by arranging the preheating chamber 2 and baking chamber 3 connected to each other inside the baking box 1, and arranging the heat feeding mechanism at the bottom of the baking chamber 3, when the tea leaves pass through the preheating chamber 2, they can be preheated at a low temperature first, and then enter the baking chamber 3 for baking. During preheating, the piled tea leaves can be dispersed by the stirring mechanism to form gaps between each piece of tea leaves, so that it is convenient to bake the tea leaves in all directions after entering the baking chamber 3, so that the tea leaves can be heated evenly, and the color of the tea leaves after baking can be guaranteed; by arranging a top plate 13 on the reciprocating stirring mechanism through a stepping mechanism, and arranging a trigger button 14 at one end of the preheating chamber 2, so that the top plate 13 can be driven with the operation of the stirring mechanism. After the stirring mechanism runs back and forth for multiple times, the top plate 13 can reach the point where it can abut against the trigger button 14, and then the upper conveyor belt 5, the lower conveyor belt 6, the blocking mechanism and the feeding plate 10 will be started, so as to control the time when the tea leaves are located in the preheating chamber 2 and the baking chamber 3.

[0023] like Figure 3 As shown, the heat supply mechanism includes an air inlet pipe 15, which is fixedly installed in the middle position of the bottom of the baking box 1, and an air supply motor 17 is fixedly installed inside the air inlet pipe 15 through a mounting rod 16. An exhaust fan blade 18 is coaxially fixedly installed on the output shaft of the air supply motor 17. A heating chamber 19 is opened in the bottom wall of the baking box 1, and an electric heating wire 20 is installed inside the heating chamber 19. The bottom of the heating chamber 19 is connected with the top of the air inlet pipe 15, and the top of the heating chamber 19 is connected with the bottom of the baking chamber 3 through an air inlet hole 21. An exhaust hole 22 is opened through the top wall of the baking box 1; the exhaust fan blade 18 draws external airflow into the heating chamber 19 for heating, and the heated airflow enters the baking chamber 3 through the air inlet hole 21 to bake the preheated tea leaves, and the airflow in the baking chamber 3 enters the preheating chamber 2 to preheat the tea leaves, and finally flows out from the exhaust hole 22.

[0024] like Figure 1-2As shown, upper transmission rollers 23 are rotatably installed near both ends of the preheating chamber 2, and the two upper transmission rollers 23 are connected by the upper conveyor belt 5. Lower transmission rollers 24 are rotatably installed near both ends of the baking chamber 3, and the two lower transmission rollers 24 are connected by the lower conveyor belt 6. A first motor 25 and a second motor 26 are fixedly installed on the side wall of the baking box 1. The output shafts of the first motor 25 and the second motor 26 are coaxially fixedly connected to one of the upper transmission rollers 23 and one of the lower transmission rollers 24, respectively. The first motor 25 and the second motor 26 are both connected to the trigger button 14; when the abutting plate 13 abuts the trigger button 14, the first motor 25 and the second motor 26 will run simultaneously, driving the upper conveyor belt 5 and the lower conveyor belt 6 to run.

[0025] like Figure 1-2 and Figure 8-9 As shown, one end of the baking oven 1 is a transparent end, and the blocking mechanism includes an upper material transfer door 27 and a lower material transfer door 28. The top of the upper material transfer door 27 is hinged to the top of the transparent end through a hinge shaft, and the bottom of the lower material transfer door 28 is hinged to the bottom of the transparent end through a hinge shaft; an upper storage chamber 29 is opened near the bottom of the upper material transfer door 27, and a first torsion spring shaft 30 is rotatably installed inside the upper storage chamber 29; a lower storage chamber 31 is opened near the top of the lower material transfer door 28, and the lower storage chamber 32 is opened near the top of the lower material transfer door 28. 1 is rotatably mounted with a second torsion spring shaft 32, the bottom of the upper storage chamber 29 and the top of the lower storage chamber 31 are both connected to the outside through a first through hole 33, a connecting belt 34 is wound around the first torsion spring shaft 30 and the second torsion spring shaft 32, and the connecting belts 34 on the first torsion spring shaft 30 and the second torsion spring shaft 32 are connected through the first through hole 33; a bottom storage chamber 37 is opened near the middle of the lower transfer door 28, and a third torsion spring shaft 38 is rotatably mounted inside the bottom storage chamber 37, and the third torsion spring shaft 38 is rotatably mounted inside the bottom storage chamber 37. A material guide belt 39 is wound on the three-torsion spring shaft 38, and the bottom storage chamber 37 is connected to the baking chamber 3 through the second through hole 40. A fixed rod 41 is fixedly installed inside the baking chamber 3, and one end of the material guide belt 39 is connected to the fixed rod 41 through the second through hole 40; first rotating seats 35 are rotatably installed on the side walls of the baking box 1 and the upper material transfer door 27, and the two first rotating seats 35 are connected by a first electric telescopic rod 36, and the first electric telescopic rod 36 is connected to the trigger button 14; by setting The upper material transfer door 27 and the lower material transfer door 28 are arranged. After the trigger button 14 is triggered, the first electric telescopic rod 36 is extended, and the upper material transfer door 27 drives the lower material transfer door 28 to rotate, so that the tea leaves falling from the upper conveyor belt 5 can slide onto the lower conveyor belt 6 through the inner surfaces of the upper material transfer door 27 and the lower material transfer door 28. The connecting belt 34 can not only connect the upper material transfer door 27 and the lower material transfer door 28, but also prevent the tea leaves from falling. The guide belt 39 can make the tea leaves fall accurately onto the lower conveyor belt 6.

[0026] like Figure 4 and Figure 6As shown, the stirring mechanism includes a slide plate 42, a convex plate 43 is fixedly installed on the upper surface of the slide plate 42, a convex groove 44 is provided on the lower surface of the top wall of the baking box 1, and the convex plate 43 slides in the convex groove 44, a reciprocating groove 45 is provided on the lower surface of the top wall of the baking box 1, and the reciprocating screw 12 is rotatably installed in the reciprocating groove 45, and a driven bevel gear 46 is coaxially fixedly installed at one end of the reciprocating screw 12, and a fourth motor 47 is fixedly installed on the top of the baking box 1, and a driving bevel gear 48 is coaxially fixedly installed on the output shaft of the fourth motor 47, and the driving bevel gear 48 is meshed with the driven bevel gear 46 The top of the slide plate 42 is fixedly installed with an extension rod 49, and the top of the extension rod 49 is rotatably installed with a guide rotating block 50, which extends into the groove of the reciprocating screw 12, and the bottom of the slide plate 42 is rotatably installed with a toothed disc 51, and the bottom of the toothed disc 51 is fixedly installed with a stirring rod 52, and a driving toothed plate 53 is fixedly installed on the side wall of the preheating chamber 2, and the toothed disc 51 is meshed and connected with the driving toothed plate 53; when the reciprocating screw 12 drives the slide plate 42 to move, the toothed disc 51 is meshed with the driving toothed plate 53, so that the toothed disc 51 drives the stirring rod 52 to rotate, and the tea leaves on the upper conveyor belt 5 are stirred.

[0027] like Figure 5 As shown, the stepping mechanism includes a plate-collecting cavity 54, which is opened inside the slide plate 42, and the abutting plate 13 slides inside the plate-collecting cavity 54. A driving gear 55 is rotatably installed inside the slide plate 42, and part of the driving gear 55 abuts on one side of the abutting plate 13. A ball 56 is arranged on the side of the plate-collecting cavity 54 away from the driving gear 55. A plurality of retracting cavities 57 are horizontally and equidistantly opened on the inner surface of the baking cavity 1, and a helical tooth plate 59 is slidably installed inside the retracting cavity 57 through an abutting spring 58. The driving gear 55 meshes with the helical tooth plate 59, and the helical gears 56 are arranged on the inner surface of the baking cavity 1. A control rope 60 is fixedly installed at one end of the plate 59 located in the retracted cavity 57, and the other end of the control rope 60 extends to the outside of the baking box 1; when the slide plate 42 moves, the driving gear 55 will push the bevel plate 59 into the retracted cavity 57, and the driving gear 55 will not rotate. When the slide plate 42 is reset, the driving gear 55 will be pushed by the bevel plate 59 to drive the top plate 13 to slide outward, wherein the contact amount between the bevel plate 59 and the driving gear 55 can be controlled by the control rope 60, thereby controlling the number of back and forth movements of the stirring mechanism to hit the trigger button 14.

[0028] like Fig.10As shown, a plate through-hole 61 is formed at one end of the preheating chamber 2 away from the opening end, and the plate through-hole 61 and the top plate 13 are located on the same horizontal plane. A sleeve 62 is fixedly installed at one end of the baking box 1, and a sleeve plate 63 is slidably installed inside the sleeve 62. The trigger button 14 is installed on the sleeve plate 63, and the trigger button 14 and the top plate 13 are located on the same horizontal plane. A third motor 64 is fixedly installed on one side of the baking box 1, and a reset wheel 65 is coaxially fixedly installed on the output shaft of the third motor 64, and part of the reset wheel 65 extends into the plate through-hole 61, and the third motor 64 is connected to the trigger button 14; the distance between the top plate 13 and the trigger button 14 can be controlled by moving the sleeve plate 63. After the top plate 13 hits the trigger button 14, the third motor 64 rotates rapidly, and the top plate 13 is retracted into the plate receiving chamber 54 through the reset wheel 65 to start the next cycle.

[0029] like Figure 1-2 As shown, both ends of the baking chamber 3 are open ends, and the top of the baking chamber 3 away from the lower transfer door 28 is hinged with a discharge door 66 through a hinge shaft, and the bottoms of the baking box 1 and the supply box 8 are fixedly installed with supporting legs 67.

[0030] like Figure 1-2 As shown, the feeding pipe 7 is connected to the top of one side of the feeding box 8, the top of the feeding box 8 is hinged with a feeding cover 68 through a hinge shaft, the pressure sensing plate 11 is arranged at the bottom of the feeding cover 68, and a fourth electric telescopic rod 69 is fixedly installed on the side of the feeding box 8 away from the feeding pipe 7, the telescopic end of the fourth electric telescopic rod 69 is fixedly connected to the pushing plate 9, and a third electric telescopic rod 70 is fixedly installed on the bottom of the feeding box 8, the telescopic end of the third electric telescopic rod 70 is fixedly connected to the feeding plate 10, the third electric telescopic rod 70 is connected to the trigger button 14, and the fourth electric telescopic rod 69 is connected to the pressure sensing plate 11.

[0031] A control method for a multi-stage continuous tea roasting machine comprises the following steps: Step A: heat supply: turn on the air supply motor 17 and the heating wire 20 to supply heat; Step B: Adding tea: After the trigger button 14 is triggered, the feeding plate 10 pushes the tea leaves upward, and after the pressure sensing plate 11 senses, the third electric telescopic rod 70 stops, and the pushing plate 9 pushes the tea leaves onto the upper conveyor belt 5; Step C: Preheating: The stirring mechanism is in operation, and the stirring rod 52 spreads and stirs the tea leaves for preheating; Step D: material transfer: after the stirring mechanism runs several times back and forth, the stepping mechanism drives the abutting plate 13 to abut the trigger button 14, and the tea leaves on the upper conveyor belt 5 are conveyed to the lower conveyor belt 6 for baking; Step E: Discharging: After the trigger button 14 is triggered, the lower conveyor belt 6 delivers the roasted tea leaves through the discharging door 66; Step F: loop: Step A is always on, and step BE is looped, so that tea leaves can be roasted in multiple stages continuously.

[0032] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0035] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A multi-stage continuous tea roasting machine, comprising a roasting box (1), characterized in that: The interior of the baking box (1) is divided into a preheating chamber (2) and a baking chamber (3); the preheating chamber (2) and the baking chamber (3) are connected via a ventilation hole (4); a heat supply mechanism is provided at the bottom of the baking chamber (3); an upper conveyor belt (5) and a lower conveyor belt (6) are rotatably installed in the interior of the preheating chamber (2) and the baking chamber (3), respectively; one end of the preheating chamber (2) and the baking chamber (3) are connected via a blocking mechanism; One end of the preheating chamber (2) is connected to a feed box (8) via a feed pipe (7); a push plate (9) is slidably provided on a side of the feed box (8) away from the baking box (1); a feed plate (10) is slidably installed inside the feed box (8); a pressure sensing plate (11) is provided on the top of the feed box (8); and the pressure sensing plate (11) is connected to the push plate (9) and the feed plate (10); The top of the preheating chamber (2) is provided with a stirring mechanism via a reciprocating screw (12), and a top plate (13) is slidably provided on the stirring mechanism via a stepping mechanism. A trigger button (14) is provided at one end of the preheating chamber (2), and the trigger button (14) is connected to the upper conveyor belt (5), the lower conveyor belt (6), the blocking mechanism and the feeding plate (10).

2. A multi-stage continuous tea roasting machine according to claim 1, characterized in that: The heat supply mechanism comprises an air inlet pipe (15), the air inlet pipe (15) being fixedly mounted at a middle position of the bottom of the baking box (1), an air supply motor (17) being fixedly mounted inside the air inlet pipe (15) via a mounting rod (16), an exhaust fan blade (18) being coaxially fixedly mounted on an output shaft of the air supply motor (17), a heating chamber (19) being provided in the bottom wall of the baking box (1), an electric heating wire (20) being installed inside the heating chamber (19), the bottom of the heating chamber (19) being connected to the top of the air inlet pipe (15), the top of the heating chamber (19) being connected to the bottom of the baking chamber (3) via an air inlet hole (21), and an exhaust hole (22) being provided through the top wall of the baking box (1).

3. A multi-stage continuous tea roasting machine according to claim 2, characterized in that: Upper transmission rollers (23) are rotatably mounted near both ends of the preheating chamber (2), and the two upper transmission rollers (23) are connected to each other by transmission via the upper conveyor belt (5). Lower transmission rollers (24) are rotatably mounted near both ends of the baking chamber (3), and the two lower transmission rollers (24) are connected to each other by transmission via the lower conveyor belt (6). A first motor (25) and a second motor (26) are fixedly mounted on the side wall of the baking box (1), and the output shafts of the first motor (25) and the second motor (26) are coaxially fixedly connected to one of the upper transmission rollers (23) and one of the lower transmission rollers (24), respectively. The first motor (25) and the second motor (26) are both connected to the trigger button (14).

4. A multi-stage continuous tea roasting machine according to claim 3, characterized in that: One end of the baking oven (1) is a transparent end, and the blocking mechanism comprises an upper material transfer door (27) and a lower material transfer door (28), the top of the upper material transfer door (27) is hinged to the top of the transparent end via a hinge shaft, and the bottom of the lower material transfer door (28) is hinged to the bottom of the transparent end via a hinge shaft; An upper storage chamber (29) is provided at a position near the bottom of the upper material transfer door (27), and a first torsion spring shaft (30) is rotatably mounted inside the upper storage chamber (29); a lower storage chamber (31) is provided at a position near the top of the lower material transfer door (28), and a second torsion spring shaft (32) is rotatably mounted inside the lower storage chamber (31); the bottom of the upper storage chamber (29) and the top of the lower storage chamber (31) are both connected to the outside through a first through hole (33); a connecting belt (34) is wound around the first torsion spring shaft (30) and the second torsion spring shaft (32); the connecting belts (34) on the first torsion spring shaft (30) and the second torsion spring shaft (32) are connected through the first through hole (33); A bottom storage chamber (37) is provided near the middle of the lower material transfer door (28); a third torsion spring shaft (38) is rotatably mounted inside the bottom storage chamber (37); a material guide belt (39) is wound around the third torsion spring shaft (38); the bottom storage chamber (37) is connected to the baking chamber (3) via a second through hole (40); a fixing rod (41) is fixedly mounted inside the baking chamber (3); one end of the material guide belt (39) is connected to the fixing rod (41) via the second through hole (40); A first rotating seat (35) is rotatably mounted on the side walls of the baking box (1) and the upper material transfer door (27); the two first rotating seats (35) are connected via a first electric telescopic rod (36); and the first electric telescopic rod (36) is connected to the trigger button (14).

5. A multi-stage continuous tea roasting machine according to claim 4, characterized in that: The stirring mechanism comprises a slide plate (42), an embossed plate (43) is fixedly mounted on the upper surface of the slide plate (42), an embossed groove (44) is provided on the lower surface of the top wall of the baking box (1), the embossed plate (43) slides in the embossed groove (44), a reciprocating groove (45) is provided on the lower surface of the top wall of the baking box (1), the reciprocating screw (12) is rotatably mounted in the reciprocating groove (45), a driven bevel gear (46) is coaxially fixedly mounted on one end of the reciprocating screw (12), a fourth motor (47) is fixedly mounted on the top of the baking box (1), and a drive gear (46) is coaxially fixedly mounted on the output shaft of the fourth motor (47). A driving bevel gear (48) is installed, and the driving bevel gear (48) is meshingly connected with the driven bevel gear (46); an extension rod (49) is fixedly installed on the top of the slide plate (42); a guide rotating block (50) is rotatably installed on the top of the extension rod (49); the guide rotating block (50) extends into the groove of the reciprocating screw (12); a toothed disc (51) is rotatably installed on the bottom of the slide plate (42); a stirring rod (52) is fixedly installed on the bottom of the toothed disc (51); a driving toothed plate (53) is fixedly installed on the side wall of the preheating chamber (2); the toothed disc (51) is meshingly connected with the driving toothed plate (53).

6. A multi-stage continuous tea roasting machine according to claim 5, characterized in that: The stepping mechanism comprises a plate collecting cavity (54), the plate collecting cavity (54) being opened inside the slide plate (42), the abutting plate (13) sliding inside the plate collecting cavity (54), a driving gear (55) being rotatably mounted inside the slide plate (42), a part of the driving gear (55) abutting against one side of the abutting plate (13), a ball (56) being arranged on a side of the plate collecting cavity (54) away from the driving gear (55), a plurality of retracting cavities (57) being horizontally and equidistantly opened on the inner surface of the baking cavity (1), a beveled tooth plate (59) being slidably mounted inside the retracting cavity (57) via abutting springs (58), the driving gear (55) meshing with the beveled tooth plate (59), a control rope (60) being fixedly mounted on one end of the beveled tooth plate (59) located inside the retracting cavity (57), the other end of the control rope (60) extending to the outside of the baking box (1).

7. A multi-stage continuous tea roasting machine according to claim 6, characterized in that: A plate through-hole (61) is formed through one end of the preheating chamber (2) away from the opening end, the plate through-hole (61) and the top plate (13) are located on the same horizontal plane, a sleeve (62) is fixedly mounted on one end of the baking box (1), a sleeve (63) is slidably mounted inside the sleeve (62), the trigger button (14) is mounted on the sleeve (63), the trigger button (14) and the top plate (13) are located on the same horizontal plane, a third motor (64) is fixedly mounted on one side of the baking box (1), a reset wheel (65) is coaxially fixedly mounted on the output shaft of the third motor (64), a portion of the reset wheel (65) extends into the plate through-hole (61), and the third motor (64) is connected to the trigger button (14).

8. The multi-stage continuous tea roasting machine according to claim 7, characterized in that: Both ends of the baking chamber (3) are open ends, a discharge door (66) is hingedly connected to the top of the baking chamber (3) at one end away from the lower material transfer door (28) via a hinge shaft, and legs (67) are fixedly mounted on the bottoms of the baking box (1) and the supply box (8).

9. A multi-stage continuous tea roasting machine according to claim 8, characterized in that: The feeding pipe (7) is connected to the top of one side of the feeding box (8); the top of the feeding box (8) is hingedly connected with a feeding cover plate (68) via a hinge shaft; the pressure sensing plate (11) is arranged at the bottom of the feeding cover plate (68); a fourth electric telescopic rod (69) is fixedly installed on the side of the feeding box (8) away from the feeding pipe (7); the telescopic end of the fourth electric telescopic rod (69) is fixedly connected to the pushing plate (9); a third electric telescopic rod (70) is fixedly installed on the bottom of the feeding box (8); the telescopic end of the third electric telescopic rod (70) is fixedly connected to the feeding plate (10); the third electric telescopic rod (70) is connected to the trigger button (14); and the fourth electric telescopic rod (69) is connected to the pressure sensing plate (11).

10. A control method for a multi-stage continuous tea roasting machine according to any one of claims 1 to 9, comprising the following steps: Step A: supplying heat: turning on the air supply motor (17) and the heating wire (20) to supply heat; Step B: Adding tea: After the trigger button (14) is triggered, the feeding plate (10) pushes the tea leaves upward, and after the pressure sensing plate (11) senses, the third electric telescopic rod (70) stops, and the pushing plate (9) pushes the tea leaves onto the upper conveyor belt (5); Step C: preheating: the stirring mechanism is operated, and the stirring rod (52) spreads and stirs the tea leaves for preheating; Step D: material transfer: after the stirring mechanism runs several times back and forth, the stepping mechanism drives the abutting plate (13) to abut against the trigger button (14), and the tea leaves on the upper conveyor belt (5) are conveyed to the lower conveyor belt (6) for roasting; Step E: Discharging: After the trigger button (14) is triggered, the lower conveyor belt (6) delivers the roasted tea leaves through the discharging door (66); Step F: loop: Step A is always on, and step BE is looped, so that tea leaves can be roasted in multiple stages continuously.

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